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LOG OF EXPLORATORY BORING 19 <br /> PROJECT NUMBER 0805-114.02 BORING NO B29/VW11 <br /> PROJECT NAME ARCO Products Company Service Station No 2130 PAGE 3 OF 4 <br /> BY D. Foley DATE 8/11/95 SURFACE ELEV —15 ft. <br /> RECOVERY PID PENETRA- WELL <br /> TION J 24 LU LETHO- <br /> E� J GRAPHIC DESCRIPTION DETAIL <br /> ¢5 � COLUMN <br /> (ft/ft) (ppm) (blws/ft) L43J <br /> 1 011 5 00 SILT(ML), continued <br /> 27 <br /> 1 011 5 68 7 45 @45' as above, brown (10YR, 5/3), iron-oxide <br /> staining over 20% of sample, manganese-oxide <br /> 69 staining over 5% of sample, hard, damp, <br /> moderate hydrocarbon odor <br /> 0 810 8 28 5 50 @50' as above, slight to moderate hydrocarbon <br /> odor <br /> 92/0 8 <br /> SANDY SELT(ML), grayish brown (10YR, 5/2), <br /> 8111195 70% low plasticity fines, 30% fines-grained sand, <br /> 1 2/1 5 346 Z 55 iron-oxide staining over 5% of sample, <br /> - manganese-oxide staining over 5% of sample, <br /> 54 very dense, moist, strong hydrocarbon odor <br /> SAND(SP), light olive brown (2 5Y, 6/3), 5% fines, <br /> 8/11/95 95% fine-grained sand, dense, wet, strong <br /> hydrocarbon odor <br /> Sz <br /> 60 <br />. REMARKS <br /> Boring drilled using 10-inch diameter continuous-flight,hollow-stem auger drilling equipment and sampled with a <br /> modified Cahfornia spht-spoon sampler Boring converted to a 4-inch diameter vapor extraction well See Well <br /> Details sheet for well construction information <br /> E oN <br />